When people are paying attention to the same narrative (like a TV show) in real time but not forcing themselves to focus, their brains may become similar—as if synchronized—according to new research from the Rosenberg Lab at the University of Chicago.

How much of this page will you read? How much will you remember? And does it make a difference when you’re reading, or where? Those are the sorts of questions that a University of Chicago neuroscientist asks in an innovative new study—one that examines brain scans to uncover how attention is sustained over time, and when it might fluctuate.